Dai Nippon Printing Co., Ltd.

Mitsuhiro Kuzuhara

Gen Furui

Yukimitsu Iwata

Jun Tsujimoto

Shigeki Murakami

Junya Eguchi

Takumi Yoneyama

Masatoshi Nishimura

Yousuke Kousaka

Nobuyuki Tobe

Masahiro Torimoto

Takayuki Fukuda

Provided is an anti-glare film that can suppress reflection and impart a sense of luxury by suppressing surface graininess. The anti-glare film includes a first main surface and a second main surface opposite to the first main surface, in which when the average inclination angle with a cut-off value of 0.8 mm of the first main surface is defined as θaand the average inclination angle with a cut-off value of 2.5 mm of the first main surface is defined as θa, the anti-glare film satisfies the following Equations (1) and (2).0.20 degrees≤θ≤0.70 degrees  (1)|θ|≤0.10 degrees  (2)

Antiglare film, and polarizing plate, surface plate, and image display device that use same

Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/mor more and 0.050 ml/mor less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

Optical film, image display panel, and image display device

Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

The present invention provides an optical layered body having excellent scratch resistance while having antireflective performance. The present invention relates to an optical layered body including a light-transmitting substrate; and at least an antiglare layer and a low refractive index layer disposed in the stated order on one surface of the light-transmitting substrate, wherein the low refractive index layer has an arithmetic average roughness Ra of projections and depressions of 4 nm or less and a ten-point average roughness Rz of the projections and depressions of 60 nm or less, where the Ra and the Rz are measured in any 5-μm square region of a surface of the low refractive index layer.

Optical layered body having specified average roughness and surface hardness

Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. The anti-glare film includes an anti-glare layer, the anti-glare film having an uneven surface, wherein for an amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 μm, 0.010 μm, and 0.015 μmis defined as AM1 and an amplitude at a spatial frequency of 0.300 μmis defined as AM2, AM1 is 0.070 μm or more and 0.400 μm or less, AM2 is 0.0050 μm or more, and AM2<AM1.

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Okayama, Japan

Mitsuhiro Kuzuhara